Pair students together . Have one student work the problems on worksheet A and the other student work the problems on worksheet B. Have the students compare their answers. The answers are the same for both worksheets. If they do not get the same answers have them trade worksheets and do error analysis.
Quadratic Equations and Complex Numbers
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Pair students together . Have one student work the problems on worksheet A and the other student work the problems on worksheet B. Have the students compare their answers. The answers are the same for both worksheets. If they do not get the same answers have them trade worksheets and do error analysis.
Nice introduction to the powers of i.
Another option for the powers of I.